Articulated mounting for bones of a body.



H. H. FRYETTE. ARTIGULATED MOUNTING FOR BONES OF A BOD-Y.

APPLICATION FILED SEPT. 3, 1909.

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Patented Dec. 20, 1910.

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H H. FRYETTE. ATED MOUNTING FOR BONES OF A BODY.

ABTICUL APPLICATION PILE D SEPT. 3, 1909.

' Patented Dec. 20

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HARRISON H. FB YETTE,

0F GHICAGQ, IL'LINO IS.

ABTICULATED MOUNTING FOB BONES 0F A'BOZDY.

Specification of Letters Patent.

Application lile'd September 3, 1909. Serial No. 516,018.

To all whom it may concern: v

Beit known that I, HARRISON H. FRYETTE,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illino s, have invented a certain new and useful Improvement in Articulated Mountings for the Bones of a Body, of which the following is a specification. 4

For a long time it has been customary to mount the bones of a body, human or otherwise, in approximately their natural position, for study, and this has recently become especially necessary in connection with the practice of osteopathy, which works upon the general theory that distortion in the normal positions of bones of the body results in pressure upon the conductors of blood and nerve supply, with the resulting illness in remote parts of the body aiiected by those conductors, this theory being applied espcciall-y to thehuman' spine.

Ihe object of this invention is to provide amounting in general for any of the bones of a body but particularly such a mounting for the bones of the human spine so that it may be readily used wherever 'o'ccasion requires for illustrating the effects of distort-ion in the positions of the bones The invention consists broadly in a novel means for joining the successive bones together for the purpose described, and particularly in providing a'novel cushion material to represent the intervertebral disks which in life occupy the space between successive' vertebrae.

The invention also consists in other details of construction which will. be more fully described and claimed.

Referring to 'the drawings, Figure 1 is a general view of the bones of a human spine mounted by the device of this invention, said View being taken from the position which would be in front of the person to whom this particular spine belonged. Fig. 2 is a sectional detail view .on the line 2-2, Fig. 1. Fig. 3 is a detail perspective view of one of the intervertebral disks. Fig. 4 is an enlarged detail partially side view of four of the vertebra: of the spine, showing the method of mounting them. Fig. 5 shows the same parts as in Fig. 4. twisted out of their normal position showing. the way that it is possible to manipulate the spinal column mounted in accordance with this invention.

Fig. 6 is a side view of two adjacent vertebrae in normal position. Fig. 7 is a corresponding view showing the efiect of distortion of the spine on the blood vess'els. Fig. 8 is a front view of said bones shorving the ellect of the same distortion on the intervertebral disk.

Again referring to the drawings, the numerals 10l6 inclusive represent the cervical vertebrae. The numerals l7-28 inclusive represent the dorsal vertebrae and the numerals 29 to 33 inclusive indicate the lumbar vertebrae. Through this spine is assed an ordinary rubber member, ordinari y a tube 34 of the proper size, the same representing the spinal cord, and between the successive vertebrae are placed intervertebral disks 3% of yielding material, preferably sponge rubber. Entering the proper spaces in and between the vertebra and passing through the spinal cord 34 are small rubber tubes 38 representing the venal blood vessels, other tubes 40 representing the arterial blood vessels and other tubes 42 'representin eiierent and afi erent nerve casing. long the extreme back of the spine is a broad rubber band 44 attached to eachvertebra byany suitable means such, for instance, as a pin or rivet 46, said band 44 representing the anterior ligaments of the spine. The transverse spinose processes l7 projecting from the vertebrae are successively connected together by small elastic bands, 48 looped, said bands representing the intervertebral ligaments. Through the cervical vertebrae are parallel rubber tubes 50 and 52 representing the vertebral artery and vertebral vein. At the top or upper end of the device is provided a handle 54 and therubber decorative ball 56 for use in displaying the device.

A spine thus mounted closely resembles its condition in the living body and yet is subject to hand manipulation by twisting, stretching or compressing. to illustrate the eiiect on the spine of similar actions in life. WVhile all of the devices used in securing this mounting are desirable, the use of the sponge rubber'for the intervertebral disks is especially valuable as most nearly apr.

proaching the proper imitation of the actual disks and their action in life between the vertebrae of the spine.

l/Vhile, as heretofore stated, the mounting is especially desirable for use in connection with the bones of the human 5 inc, it may manifestly be used, if desired, or properly Patented Dec. 2Q, 191d.

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